CN102962043A - Preparation method of TiO2 loaded nitric acid modified viscose-based activated carbon fiber cloth photocatalytic material - Google Patents
Preparation method of TiO2 loaded nitric acid modified viscose-based activated carbon fiber cloth photocatalytic material Download PDFInfo
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- CN102962043A CN102962043A CN2012103834398A CN201210383439A CN102962043A CN 102962043 A CN102962043 A CN 102962043A CN 2012103834398 A CN2012103834398 A CN 2012103834398A CN 201210383439 A CN201210383439 A CN 201210383439A CN 102962043 A CN102962043 A CN 102962043A
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- carbon fiber
- activated carbon
- fiber cloth
- nitric acid
- viscose
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Abstract
Belonging to the technical field of photocatalytic material preparation, the invention discloses a preparation method of a TiO2 loaded nitric acid modified viscose-based activated carbon fiber cloth photocatalytic material. The method includes the steps of: taking a viscose-based activated carbon fiber cloth, placing it in a nitric acid solution, conducting constant temperature treatment at 80 DEG C, carrying out washing and drying, thus obtaining a nitric acid modified viscose-based activated carbon fiber cloth; treating the dried viscose-based activated carbon fiber cloth, placing it into a TiO2 emulsion, performing ultrasonic immersing loading, and implementing drying, thus obtaining the TiO2 loaded nitric acid modified viscose-based activated carbon fiber cloth photocatalytic material. The photocatalytic material provided in the invention can be directly used for purifying decorated living rooms, new cars and other places. The preparation method of the TiO2 loaded nitric acid modified viscose-based activated carbon fiber cloth photocatalytic material in the invention has the advantages of low cost and simplicity, and has a reaction conversion rate enhanced by nearly 3 times.
Description
Technical field
The present invention relates to a kind of TiO
2Be carried on the preparation method of the viscose base activated carbon fiber cloth catalysis material of modifying through nitric acid, belong to the catalysis material technical field.
Background technology
Along with the fast development of industrial technology, problem of environmental pollution is day by day serious.Particularly, waiting the interior VOCS(volatile combustible gases of confined space in the indoor and car, mainly is formaldehyde, benzene, toluene and dimethylbenzene etc.) to the injury that human body causes, day by day be subject to people's attention.How efficient, energy-conservation, remove volatile combustible gas at an easy rate and become science and technology field and want the problem that breaks through always.Photocatalysis technology utilizes solar energy as energy source, under the effect of photocatalysis material, volatile combustible gases is decomposed into the inorganic matters such as carbon dioxide, water, can not produce secondary pollution, has the incomparable advantage of traditional conventional catalysis technique.Wherein, nano-TiO
2As a kind of common catalysis material, because of its high catalytic activity, nontoxicly, inexpensive be widely used and study as catalysis material.In order high-efficient simple ground more to use TiO
2, it is carried on ACF becomes a study hotspot.
At present, TiO
2The preparation of/ACF catalyst is directly with TiO
2(or TiO
2Precursor) load on the not modified ACF, this load meeting causes TiO
2Load is uneven and in conjunction with unstable problem, causes catalytic effect not good.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of TiO
2Be carried on the preparation method of the viscose base activated carbon fiber cloth catalysis material of modifying through nitric acid.
TiO
2Be carried on the preparation method of the viscose base activated carbon fiber cloth catalysis material of modifying through nitric acid, its step is as follows:
1) get a viscose base activated carbon fiber cloth, place salpeter solution, 80 ℃ of constant temperature are processed, and the washing post-drying obtains the viscose base activated carbon fiber cloth through the nitric acid modification;
2) with step 1) the middle viscose base activated carbon fiber cloth of processing the rear gained of oven dry, place TiO
2In the emulsion, the ultrasonic immersing load, oven dry obtains TiO
2Be carried on the viscose base activated carbon fiber cloth catalysis material of modifying through nitric acid.
Step 1) mass percent concentration of the salpeter solution that uses of described viscose-based active carbon fiber is 9.2%-67%, and the processing time is 0.5-6 hour.
Step 2) TiO in
2The load quality percent concentration be 0.5%-4%.
Beneficial effect of the present invention:
The present invention increases viscose-based active carbon fiber (ACF) surface hydrophilic group, thereby improves its surface hydrophilicity, makes TiO
2Can evenly load to securely on the activated carbon fiber, improve reaction conversion ratio.The hydrophilic increase of ACF makes photocatalyst surface be rich in hydrone simultaneously, is beneficial to photoelectron oxidize water molecule and becomes hydroxyl radical free radical, greatly accelerated reaction.The TiO that the present invention obtains
2Be carried on the viscose base activated carbon fiber lighting catalytic material catalyzes agent reaction conversion ratio of modifying through nitric acid and improve nearly 3 times, and with low cost, method is simple.
Description of drawings
Fig. 1 is TiO
2Be carried on the viscose base activated carbon fiber cloth catalysis material XRD collection of illustrative plates of modifying through nitric acid;
Fig. 2 (a) is TiO
2Be carried on the viscose base activated carbon fiber cloth catalysis material SEM collection of illustrative plates of modifying through nitric acid;
Fig. 2 (b) is TiO
2Directly be carried on viscose base activated carbon fiber cloth catalysis material SEM collection of illustrative plates.
The specific embodiment
Further specify the present invention below in conjunction with drawings and Examples.
Embodiment 1
Get a size and be the viscose base activated carbon fiber of 10cm*10cm, placing mass percent concentration is 67% salpeter solution, and 80 ℃ of waters bath with thermostatic control were processed 6 hours, is washed to pH for neutral, and place baking oven to dry, obtain the viscose base activated carbon fiber cloth of modifying through nitric acid.
It is 4% TiO that the viscose-based active carbon fiber that nitric acid is modified places mass percent concentration
2In (P25, goldschmidt chemical corporation) suspension, the excusing from death dipping places oven for drying, makes catalyst.XRD analysis (Fig. 1) shows TiO
2Keep little anatase and rutile-type, SEM(Fig. 2 (a)) show TiO
2Be dispersed on the NACF well.Catalyst 6h light degradation toluene, degradation rate is 52.6%.
Embodiment 2
Get a size and be the viscose base activated carbon fiber of 10cm*10cm, placing the quality mass percent concentration is 9.2% salpeter solution, and 80 ℃ of waters bath with thermostatic control were processed 0.5h hour, is washed to pH for neutral, and place baking oven to dry, obtain the viscose base activated carbon fiber cloth of modifying through nitric acid.
It is 0.5% TiO that the viscose-based active carbon fiber that nitric acid is modified places mass percent concentration
2In (P25, goldschmidt chemical corporation) suspension, the excusing from death dipping places oven for drying, makes catalyst.Catalyst 6h light degradation toluene, degradation rate is 20.5%.
Embodiment 3
Get a size and be the viscose base activated carbon fiber of 10cm*10cm, placing the quality mass percent concentration is 30% salpeter solution, and 80 ℃ of waters bath with thermostatic control were processed 3h hour, is washed to pH for neutral, and place baking oven to dry, obtain the viscose base activated carbon fiber cloth of modifying through nitric acid.
It is 1% TiO that the viscose-based active carbon fiber that nitric acid is modified places mass percent concentration
2In (P25, goldschmidt chemical corporation) suspension, the excusing from death dipping places oven for drying, makes catalyst.Catalyst 6h light degradation toluene, degradation rate is 34.7%.
Embodiment 4
Get size and be the viscose base activated carbon fiber of 10cm*10cm, without the nitric acid modification, directly placing mass fraction is 4% TiO
2In the suspension, excusing from death dipping 1h places oven for drying, makes catalyst.The SEM photo of sample shown in Fig. 2 (b), the TiO on NACF surface
2Negligible amounts, and it is serious to reunite.Catalyst 6h light degradation toluene, degradation rate is 12.2%.
Claims (3)
1. TiO
2Be carried on the preparation method of the viscose base activated carbon fiber cloth catalysis material of modifying through nitric acid, it is characterized in that step is as follows:
Get a viscose base activated carbon fiber cloth, place salpeter solution, 80 ℃ of constant temperature are processed, and the washing post-drying obtains the viscose base activated carbon fiber cloth through the nitric acid modification;
With step 1) the middle viscose base activated carbon fiber cloth of processing the rear gained of oven dry, place TiO
2In the emulsion, the ultrasonic immersing load, oven dry obtains TiO
2Be carried on the viscose base activated carbon fiber cloth catalysis material of modifying through nitric acid.
2. a kind of TiO according to claim 1
2Being carried on the preparation method of the viscose base activated carbon fiber cloth catalysis material of modifying through nitric acid, it is characterized in that step 1) mass percent concentration of the salpeter solution that uses of described viscose-based active carbon fiber is 9.2%-67%, the processing time is 0.5-6 hour.
3. a kind of TiO according to claim 2
2Be carried on the preparation method of the viscose base activated carbon fiber cloth catalysis material of modifying through nitric acid, it is characterized in that step 2) middle TiO
2The load quality percent concentration be 0.5%-4%.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212395A (en) * | 2013-04-18 | 2013-07-24 | 合肥工业大学 | TiO2 single-crystal nanorod-activated carbon fiber composite photocatalyst, and preparation method and applications thereof |
| CN104084185A (en) * | 2014-06-30 | 2014-10-08 | 华南理工大学 | Modified activated carbon as well as preparation method and application thereof |
| CN104888750A (en) * | 2015-04-24 | 2015-09-09 | 北京理工大学 | Activated carbon fiber loading titanium dioxide composite photocatalytic material and preparation method and application thereof |
| CN109107495A (en) * | 2018-08-31 | 2019-01-01 | 中国海洋大学 | A kind of photochemical catalyst directly loads and is layered the method and its component of filling |
| CN110152644A (en) * | 2019-05-18 | 2019-08-23 | 福建师范大学 | A kind of active carbon fiber fabrics are the rGO/Mg (OH) of carrier2Photo catalysis reactor |
| CN110586057A (en) * | 2019-09-30 | 2019-12-20 | 华东理工大学 | Hybrid modified TiO2Composite photocatalyst, preparation and application thereof |
| CN110898527A (en) * | 2019-11-08 | 2020-03-24 | 广东酌希投资控股有限公司 | Filter element material for air purifier and viscose-based activated carbon fiber loaded with filter element material for air purifier |
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| US20080305033A1 (en) * | 2005-07-11 | 2008-12-11 | University College Cardiff Consultants Limited | Catalysts |
| CN101284228B (en) * | 2008-05-23 | 2010-10-20 | 山东轻工业学院 | Preparation method of meso-porous titanium dioxide/activated carbon in-situ composite material |
| CN102698729A (en) * | 2012-06-11 | 2012-10-03 | 遵义医学院 | Method for enhancing adhesiveness of nano TiO2 on surface of active carbon |
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| CN101011654A (en) * | 2007-01-29 | 2007-08-08 | 中国石油大学(华东) | Preparing method of activated carbon fibre loading titanium oxide thin film and application method thereof |
| CN101284228B (en) * | 2008-05-23 | 2010-10-20 | 山东轻工业学院 | Preparation method of meso-porous titanium dioxide/activated carbon in-situ composite material |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212395A (en) * | 2013-04-18 | 2013-07-24 | 合肥工业大学 | TiO2 single-crystal nanorod-activated carbon fiber composite photocatalyst, and preparation method and applications thereof |
| CN103212395B (en) * | 2013-04-18 | 2015-02-04 | 合肥工业大学 | TiO2 single-crystal nanorod-activated carbon fiber composite photocatalyst, and preparation method and applications thereof |
| CN104084185A (en) * | 2014-06-30 | 2014-10-08 | 华南理工大学 | Modified activated carbon as well as preparation method and application thereof |
| CN104888750A (en) * | 2015-04-24 | 2015-09-09 | 北京理工大学 | Activated carbon fiber loading titanium dioxide composite photocatalytic material and preparation method and application thereof |
| CN109107495A (en) * | 2018-08-31 | 2019-01-01 | 中国海洋大学 | A kind of photochemical catalyst directly loads and is layered the method and its component of filling |
| CN109107495B (en) * | 2018-08-31 | 2021-04-20 | 中国海洋大学 | Method for directly loading and filling photocatalyst in layered mode and component thereof |
| CN110152644A (en) * | 2019-05-18 | 2019-08-23 | 福建师范大学 | A kind of active carbon fiber fabrics are the rGO/Mg (OH) of carrier2Photo catalysis reactor |
| CN110586057A (en) * | 2019-09-30 | 2019-12-20 | 华东理工大学 | Hybrid modified TiO2Composite photocatalyst, preparation and application thereof |
| CN110898527A (en) * | 2019-11-08 | 2020-03-24 | 广东酌希投资控股有限公司 | Filter element material for air purifier and viscose-based activated carbon fiber loaded with filter element material for air purifier |
| CN110898527B (en) * | 2019-11-08 | 2022-01-14 | 广东酌希生态环境科技有限公司 | Filter element material for air purifier and viscose-based activated carbon fiber loaded with filter element material for air purifier |
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Application publication date: 20130313 |